Elevator-



(NO Model.) `5 sheets-sheet 0. G. ons. v

ELEVATOR.

No. 377,635. f Patented Feb.-7, 18.88,.'y

Ill

Arron/VHS Y sheets-sheet l3.

C. CT. TIS.

ELEVATOR.v

(No Model.)

Patente-d Peb'. '1, 1838.

' WHA/5885s;

I my Afm/mns UNITED STATES vPATniwr OFFICE.

'CHARLES G. O'IIS, OF BROOKLYN, NEW YORK.

ELEvATo R.

SPECIFICATION forming part of LettersPatent No. 377,635, dated February7, 1888. Application led August 18,1887. Serial No. 247,289. (No model.)

To all whom it may concern:

Be it known that I, GHARLEs G. OTIs, a citiz en of the United States,residing at Brookf lyn, in the county of Kings andState of New York,have invented new and usefulImprovements in Elevators, ofwhich thefollowing is a specification.

This invention consists in an improved operating mechanism for elevatorvalves in which the movement of the elevator is employed to operate thevalve, as is fully set j forth in the following specification andclaims,

and illustrated in the accompanying drawings, in which- Figure lrepresents a perspective view of an elevator containing my invention.Fig. 2 is a central Vertical section, on a larger scale than Fig. 1, ofa portion of the elevator-engine. Fig. Sis a sectional perspective of asecondary77 grip. Fig. 4 is a section in the plane x w, Fig. 3. Fig. 5is a sectional perspective of a primary7 grip. Fig. 6 is a section intheplane y y, Fig. 5. Figs. 7 and 8 are diagrams showing the movements ofparts. Fig. 9 is a sectional elevation of a modified form of grip.' Fig.10 is a section in the plane x x', Fig. 9. Figs. 11 and 12 are similarviews illustrating the movement of the grip. Fig. 13 is a perspectiveview showing the gripapplied to the car. Fig. 14 is a sectionalelevation of a modiiied form of the grip shown in Figs. 9, 10, and 11.Fig. 15 is a vertical section in the plane y y', Fig. 14. Fig. 16 is asimilar section illustrating the operation of the grip.

Similar letters indicate corresponding parts.

.In the drawings, the letter A designates the elevator-car, from whichextends a rope over a sheave, B, which turns in an axle having fbearings in boxes that are firmly attached to the beams C. From thesheave B the rope extends beneath a sheave, d, and thence upwardly to abeam, c, where it is firmly secured. The sheave d is mounted in a cagefirmly secured to the rod of the piston D of the hydraulic engine. Thishydraulic engine is of a usual construction, and is herein brieflydescribed and shown in detail only for the purpose of more clearlyshowing the opera# valve E is.in the position shown by full lines inFig. 2, it closes the ports', and the elevatorear is stationary; but ifit is moved downward to the position shown by dotted lines in Fig. 2 thewater can enter the cylinder bel neath the piston, as indicated by thearrows in said figure. In this case the car can descend. and the waterabove the piston is forced through the supply-pipe and beneath the pis-120D. cause its descent and the enginedoes no work. If the'valve E ismoved upward to open the port s', the water beneath the piston D canescape through an outlet, e, in the valve-cylinder, and the fullpressure of the water comes on the upper surface of the piston, wherebythe latter is caused to descend and the elevator-car is correspondinglyraised, all as usual.

Referring to Fig. 1, the pulley F, connected with valve E, is actuatedby means of an end- The weight of the car is sufficient to less valverope, G. Said Vvalve-rope extendsv about a sheave, H, having bearingsiny boxes secured to the beamV C at the upper end oftheelevator-shaft,from thence downward and over idler-wheels hh', havingbearings in boxes secured to the iloor at the lowerend of the ele-V antto oscillate the pulley F, whereby the valve E was moved and the carcaused either to rise,- to descend, or to stop. In my inventionfthelvalve-rope is moved slightly 'by theattendj ant to open the valveslightly, whereupon the rope is moved by the car in its motion-to fullyopen the'valve. f

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In yorder to set the carin motion orto arrest its motion, I make use ofthe following devices which engage with the valve-rope E and move thesame to said effect: The two strands of the valve rope G, Fig. l, arerespectively adapted to be engaged by two grips, I I, which I shallhereinafter terni the primary grips, and said strands are also adaptedto be engaged, respectively, by two grips, J J which I term thesecondary grips.7 'Ihe primary grips I 1 are located at the top of thecar,and are actuated to engage the valve-rope by the hands of theattendant. The secondary grips J J are located at the bottom of the car,and are actuated by the foot of the attendant.

Referring to Figs. 5aud 6, the primary grips I I are each constructed asfollows: A sleeve, J encompasses the rope,and is provided with twoprojections or nibs, jj, that are engaged by vertical spring-hooks j2j?, carried by a bracket, J3, secured to the elevatorcar. Theprojections or nibs j j are constructed with rounded faces, so that indescending the same will force the spring-hooksjij2 apart, and the hookswill close over said nibs or projections when the sleeve is at itslowest point. At the saine time the sleeve can be drawn upward and awayfrom the hooksjij2 when suilcient force is applied. The sleeve J* isslotted for the passage of the two jaws J2 J2, which are pivotedeccentrically at j j, Fig. 6, to suitable lugs rising from the sleeve.The shanks or outer ends of the jaws are engaged by the bifurcated endof a lever, K or K, which is pivoted at k to a hanger secured to theroof of the car. A suitable handle, 7c, Fig. 1,v suspended by a cordattached to the free end of the lever K, (or K,) can be used tofacilitate the manipulation of the said lever. A spring, ja, engagingthe lever K, holds the same normally against a suitable stop, ji whenthe parts of the grip I or I are in the position shown in Figs. 5 and 6.When the inner end of the lever K is depressed, thejaws J 2 J 2 areturned about their pivotsjj, so as to bite into the rope, and on furthermovement of lever the sleeve J di is drawn from the hooks j2j2andcarried upward, together with the jaws J 2 J 2, whereby the rope iscaused to move on its sheaves. When the lever is released, the spring j3returns the same to its normal position against the stop j, and in thisvibration of the lever the jaws JZJ2 arey first released from the rope,and then sleeve J d? is returned to the grasp of the hooks ji jz.

Referring to Figs. 3 and 4, the secondary grips are each constructed asfollows.: The jaws L L are carried by arms Z Z, projecting from sleevesL L', which are loosely mounted on vertical spindles Z Z', secured to abracket or support, L2 attached to the bottoni of the elevator-car A.These sleeves L L contain inclined cam-grooves Zi Z, into which projectprongs on the end of a foot-lever, M, (or M,) which is pivoted at m to abox secured to the iloor of the car. A spring, m', holds the inner endof the foot-lever in its upper or normal position. When the inner end ofthe foot-lever is depressed, the sleeves L L are oscillated about theirspindles, and the jaws L L firmly grip thegvalve-rope.

The general operation of the mechanism is as follows, Figs. 1, 2, 7, and8: If the car is at the bot-tom of the shaft and is to rise, thehandlever K of the primarygrip I is depressed and subsequently released,thereby causing the valve-rope G to be moved in the direction of arrows1, Fig. 7, and the valve E is moved from the position shown in fulllines in Fig. 2 and slightly upward, and consequently the piston Dismoved downward, causing a slow motion upward of the car.Immediatelyafter the release of lever K the foot-lever M of thesecondary grip J is depressed and the jaws L L grip the valve-rope. Thecar being in motion, the valverope is moved to fully open the valve E,Fig. 7, after which the foot-lever M is released by the attendant.

To arrest the motion of the car while in its upward movement, thefoot-lever M of the secondary grip J is depressed, and the jaws L Lthereof grip the opposite strand of the valverope, and consequently therope is moved in a direction opposite to that indicated by arrows 1 inFig. 7 until the valve E reaches its central position, as shown in Fig.2, when the attendant releases the foot-lever. VIf the car is at the topof the elevator-shaft and is to descend, Fig. 8, the lever K of thelprimary grip I is depressed, whereby the valve-rope is moved in thedirection of arrows 2, Fig. 8, and the ear is set in motion. Thehand-lever being released, the foot-lever M of the secondary grip J isdepressed, and the valvey rope 'is moved to fully open the valve E, Fig.

8. To arrest the motion of the car in its descent, the foot-lever M ofthe secondary grip J is depressed. 4

lf desired, the secondary grip J can be omitted and the primary grip Iused to arrest the motion ofthe car.

By the use of the grip for starting and stopping the car the saidoperation is facilitated and rendered very certain.

On inspection of Figs. 7 and 8 it will be noticed that the use of bothsecondary grips J J can be dispensed with, if desired, and the primarygrips I I employed to stop the car.

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For instance, to cause the elevator-car to move upward the grip I ismoved upward to open the motor-valve E, and to arrest the motion of thecar the grip I is thrown into engagement with the valverope. To causethe car to descend, the grip I is vibrated to open the valve, and thenthe grip I is thrown into engagement with the valve-rope to fully openthe motorvalve. To arrest the motion in descending, the grip I is causedto engage the valve-rope.

By the use of a single primary grip of a peculiar construction andasingle secondary grip the elevator can be controlled by the use ofthese two grips alone. In this case the primary grip is used to startthe car in either direction, and the secondary grip 'is used to arrestthe motion of the' same.

The construction of the primary grip is illusbetween the two jaws n n'.

trated in Figs. 9, 10, 11, 12, and 13, andthe construction of thesecondary grip in Figs. 3

and 4, said latter gripbeing the same'in con# struction and applicationas that used in the example previously described. In Figs. 9, 10, 11, 12theletter n represents one jaw of the grip-I, which is secured to ahorizontal carrier, N, that is provided with an interior longitudinalguideway for a second carrier, N'. The carrier N can slide in thedirection of its length in the carrier N, and has affixed thereto thesecond jaw, n', of the grip. The carrier N is provided with trunnions n?n", Fig. 9, that bear in a suitable support, n3, secured to the wallofthe elevator-car, and the carrier N is also provided with a handle,o.V 'Iov the top and bottom of the carrier N are p'ivoted at p p twolevers, P'P*, that are connected with the sliding carrier N bypawls.p'p*,which carry pins engaging hooks or projections p2 p2 on thecarrier N. By depressing thelever P the pawl p' engages the hook orprojection p2 and moves the sliding carrier N outward in the directionof arrow 5, andthe jaw 'n' is forced against the valve-rope G, and thelatter is firmly clamped Stops p3 on the levers P P* prevent the pawlsfrom turning in the wrong direction when said levers are depressed, anda spring, p", holds the lower pawl against its stop. A spiral spring,P', returns the sliding carrier to its normal position as soon as theactuating-lever P is released. By moving the lever Ptoward the handle oof the pivoted carrier N the sliding carrier is moved outward, asindicated by arrow 5, Fig. 10; but each lever P P can be actuatedindependent of the other. One lever, P,w0uld be sufficient to actuatethe sliding carrier N but two are used to facilitate the manipulation ofthe device.

rIhe pivoted carrier N can. be vibrated about its trnnnions nE n2 ineither direction, so that the valve-rod G can be drawn in eitherdirection. When the grip I has a hold on the valve-rope and the pivotedcarrier N is turned about its trunnions in the direction of arrow 6,Fig. 10, to occupy the position shown in Fig. l1, the valve-rope G ismoved in the direction of arrow 7, Fig. 10, to open the enginevalveLwhenthe carrier N is turned from the position shown in Fig. 10 to occupy theposition shown in Fig-12, the valve-rope is moved in a directionopposite to that indicated by arrow 7, Fig. 10. In the application ofthese grips to the car (see Fig. 13) the primary grip I is arranged toengage with one strand of the endless valve-rope G, andthe secondarygrip J.which is operated by the foot of the attendant, is adapted toengage with the opposite strand ofthe valve-rope. If the car is at thebottom of the elevator-shaft (see Fig. 7)and it is to be set in motion,the grip J is caused to clamp the rope and to move upward, whereby thevalve-rope is moved in the direction of arrow 1, Fig. 7, and the valve Eis partially opened. By retaining the hold of the grip I on thevalve-rope the movement of the car completely opens the valve, whereuponthe,v

attendant moves the grip-carrier N to its normal position, Fig. 10. Tocheck the move-- ment of the car, the secondarygrip J is thrown intoengagement with the valve-rope G, whereby the latter is moved in adirection opposite to arrow 1, Fig. 7, until the valve E is closed,

when the attendant releases the grip.

To cause the car to descend, the grip I is.

caused to grasp the rope,and is moved downi wardly tothe position shownin Fig. 12, whence thevalve is partially opened, the movement of the carfully opening the latter, as before.

described. To arrest the motion of the car,

the secondary grip J is thrown into engagement with the valve-rope andsubsequently desirable that .the grip I should be arrangedv near theroof of the car, so as to be out of the way, in which case it isactuated by meansof ropes connected therewith. f rIlhis modification isillustrated in Figs. 14, 15, and 16.

The operating parts of the grip are constructed,in general,as before. Ator near the end o't' the levers P P* are lugs qq,which project laterallythereform and contain transverse openings, through which extend thevertical rods q q' of a frame, Q. To the heads g'l g", connecting therods q' g' of the frame, are attached, respectively, ropes S;k and S",having suitable handles, s* and 8, at ltheir lower.

ends. The rope S' passes over pulleys s2 s2.. By pulling down on therope S* the head g2 engages the lever P and draws the same down-Ward,frst,to throw the grip into contact with the valve-rope G, Figs. 14and; 16, and,sec ondly,to turn the carrierN about its trunnions n n?,whereby the valve-rope is movedto slightly open the valve When the ropeS' is drawn downward,the carrier N is vibrated in an opposite direction.Y

As shown in Fig. 14, ther links p' p* can be used instead of the pawlsto connect the levers P P* to the sliding carrier N said links beingpivoted to the latter, and instead of a spiral spring, P', acting on thesliding carrier,

springs P', acting on the levers P P*,can be used.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with an elevator-car,its motor, a valve, and avalve-rope, of a grip carried by the car and having jaws to engage theby the subsequent movement of the car while the ropeis under the graspof the grip-jaws, substantially as described.

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yjaws of the grip, whereby the valve can be lslightly opened, the valvebeing fully opened '13o 2. The combination, with the elevator-car andwith the endless Valve-rope, of a primary grip carried by the car andhaving jaws to engage one strand of the valve-rope, said grip beingadapted to move independently of the car, a secondary controllable gripcarried by the car and having jaws to engage the second strand of thevalve-rope, and levers for operating the jaws of said grips,substantially as described.

3. The combination, with an elevator-car, a motor, its valve, and withthe valve-rope, of a grip-carried by the car, a lever for operatingthejaws of the grip and for impart-ing a motion to the same in thedirection of the valverope, and a controllable secondary gripconstructed to engage with the valve-rope to close the valve,substantially as shown and described.

4. The combination, with a pivoted jawcarrier, N, and a slidingjaw-carrier, N', of a lever connected with the carrier N ,for actuatingthe same, and a connection between the lever and the pivotedjaw-carrier,substantially as shown and described.

5. The combination, with a pivoted jawcarrier, N, and a slidingjaw-carrier, N', carried by the same, of alever pivoted to the carrierNand connected with the carrier N', substantially as shown anddescribed.

6. The combination, with a pivoted jawcarrier, N, having a longitudinalguideway, a jaw-carrier, N', fitted to said guideway, levers P Pk,pivoted to the jaw-carrier N, and a connecting-link between the leversand the jawcarrier N', substantially as shown and described.

7. The combination, with a pivoted jawcarrier and a sliding jaw-carrier,of a pair of levers connected with the carrier N', a movable frame inengagement with said levers, and cords or chains attached to theopposite ends of the frame, substantially as shown and described. a

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

CHARLES G. OTIS. [1.. s]

XVitnesses:

W. HAUFF, E. F. KASTENHUBER.

